Questions Asked on
September 6, 2015

PreCalculus HELP!
change the polar equation r=5/1+cos(theta) to rectangular form. How do I do this? Thank you! :)
asked by Ellie 
Algebra
Your friend claims that she has a bag of 30 coins containing nickels, dimes, and quarters. The total value of the 30 coins is $3. There are twice as many nickels as there are dimes. Is your friend correct? Explain your reasoning
asked by Anne 
maths
if it takes 10 men 6 months to build a house, how long will it take one man?
asked by kerry 
Physics
An unmarked police car traveling a constant 90 km/h is passed by a speeder traveling 128 km/h. Precisely 1.00 s after the speeder passes, the police officer steps on the accelerator; if the police car's acceleration is 2.80 m/s2 , how much time passes
asked by Anonymous 
Physics
Instructions for finding a buried treasure includethe following: Go 736.4 paces at 130◦, turn to 199◦and walk 134 paces, then travel 157 paces at 195◦. Find the magnitude of the resultant displacement from the starting point. Answer in units of
asked by Camila Calero 
math
A pharmacy claims that the average medication costs $32 but it could differ as much as $8. Write and solve an absolute value inequality to determine the range of medication costs at this pharmacy. x − 32 ¡Ý 8; The medication costs range from $24 to
asked by oscar 
algebra
Solve for n: 21k – 3n + 9p > 3p + 12. n > 2p + 7k – 4 n < 2p + 7k – 4 n > –4p – 7k + 4 n < –4p – 7k + 4
asked by oscar 
Matg
Juanita told her dad that she won 80% of the card games she played yesterday. If she won 4 games, how many games did she play?
asked by Robert 
Chemistry
What is the difference between a chemical change and a chemical reaction?? My answer: A chemical change leads to a solidifed chemical reaction but more or less they are the same thing because it's a change in which one or more pure substances are converted
asked by Sam 
financial literary
Floyd employer purchase a health insurance plan that cost 825 per month Floyd page 105 toward the plan each month what is the annual value of the employer's contribution?
asked by jessy 
physics
A photographer in a helicopter ascending vertically at a constant rate of 1.2m/s accidentally drops a camera out of the window when the helicopter is 46m above the ground. How long will it take the camera to reach the ground
asked by jim 
Chem1412
The melting point of benzene (C6H6) is 5.5 oC and the heat of fusion at that temperature is 9.87 kJ/mol. How much heat would be required to melt 35.0 g of benzene at 5.5 oC? Atomic weights: C 12.011 H 1.00794
asked by Kuy 
Math and exopents
Given w = 10. w + w (12  2*2 * 3) * 7? Can some one help? the answers are: 73 12 6 3 but none of my calculations are 73, 12, 6 or 3 :(
asked by Lee 
stats 200
. At a college, 72% of courses have final exams and 46% of courses require research papers. Suppose that 32% of courses have a research paper and a final exam. Let F be the event that a course has a final exam. Let R be the event that a course requires a
asked by edi 
chemistry
What assumption did you make about the reaction of KMnO4 solution in those determinations where temp didn't change to allow k to be a constant?
asked by Frank 
Algebra
marie730 the temperature at the end of the day was 64 degrees. the temperature has increased twice during the day,once by 8 degrees and another time by 4 degrees which expression shows what the temperature was at the start of the day 6484 64+84******
asked by Bubbles 
physics for Science
2) You take the following measurements for the distance a toy car travels in 10 seconds during each 5 trials: 157cm, 175cm, 162cm, 168cm, 187cm. What are the relative uncertainties of the distance and time measurements? Which measurement is the most
asked by Alessandra Romano 
Interpersonal communication
Dale, a minister, and his wife Jan had plans for a “date night.” An emergency arose with a congregational member. Dale calls Jan saying, “I know how much we were both looking forward to our time alone tonight. I just heard from Jose that is wife is
asked by Christopher 
Physics
A descent vehicle landing on the moon has a vertical velocity toward the surface of the moon of 26.6 m/s. At the same time, it has a horizontal velocity of 55.9 m/s. At what speed does the vehicle move along its descent path? Answer in units of m/s. At
asked by Camila Calero 
Maths
Prove: (1+tan21)(1+tan28)(1+tan24)(1+tan17)=4
asked by Rabinprakash 
algebra
Solve the inequality W > Y plus H all divided by P for H. W divided by P – Y > H W times P divided by Y > H WP – Y > H W + P – Y > H
asked by oscar 
Biology
1) Large/tough seeds act as a selection pressure on what trait? a. Large bills b.Large feathers c.Dark feathers d.Long tails 2) What causes the change in bill depth between 1976 and 1978? a.The lack of rain b.The persistence of only larger seeds
asked by Need Help Urgent 
Algebra
What must be added to x^2 + 10x +23 to make it a perfect square?
asked by Noor 
phyics
When Babe Ruth hit a homer over the 10 m high rightfield fence 80 m from home plate, roughly what was the minimum speed of the ball when it left the bat? Assume the ball was hit 1.2 m above the ground and its path initially made a 39 ∘ angle with the
asked by Al 
Macroeconomics
Suppose there is a temporary but significant increase in oil prices in an economy with an upwardsloping ShortRun Aggregate Supply (SRAS) curve. If policymakers wish to prevent the equilibrium price level from changing in response to the oil price
asked by Traci 
Gen edu 499 quiz critical thinki
The very large increase in allergies over the last thirty years is due to the great success of immunizations administered over this time period. Since immunizations have nearly eliminated lifethreatening diseases such as polio, the human immune system
asked by Lisa 
physics
When Babe Ruth hit a homer over the 10 m high rightfield fence 80 m from home plate, roughly what was the minimum speed of the ball when it left the bat? Assume the ball was hit 1.2 m above the ground and its path initially made a 39 ∘ angle with the
asked by Al 
math(elmntry euclidean geometry)
The sum of the angles of a quadrilateral is 360°. Find the conditional, draw a diagram, and state the given and conclusion. CONDITIONAL FORM: If it is the sum of the angles of a quadrilateral, then it measures 360°. DIAGRAM: Not shown, but pictures a
asked by David 
Math
What must be added to x^2 + 10x +23 to make it a perfect square?
asked by Noor 
Chemistry
A 78.9g sample of HCN contains 0.290g of H and 4.06g of N. Find the mass of carbon in a sample of HCN with a mass of 3.37 g
asked by Mark 
Statistics (Percentile, Decile, Quartile)
Please refer to the following table: Number of Cellular Phones in Household: DECILE 1  1.00 2  1.00 3  1.00 4  1.00 5  2.00 6  2.00 7  3.00 8  3.00 9  4.00 (a) How many cellular phones does a household have at the 42nd percentile? (b) How many
asked by Zam 
physcial science
a student drops an object out of the window of the top floor of a high rise dormitory, how fast is the object traveling when it strikes the ground at the end of 3.4s
asked by Anonymous 
physics
Estimate the speed in mph with which water comes out of a garden hose using your past observations of water coming out of garden hoses and your knowledge of projectile motion. (Take the inclination angle to be 45°, the initial height to be 1.0 m, and the
asked by Anonymous 
general education 499 wk 4 quiz
people have claimed that Jamie's paintings have given them the blues. Clearly this cannot be entirely correct. Since many of James paintings contain no blue at all.
asked by Lisa 
Algebra
Express 81p^2  49q^2 as products of two terms.
asked by Noor 
MATH
Andrea wants to deposit money into a bank account that earns 2.5% simple interest. Use the formula to find the amount of money that she should deposit so that she earns $2500 after 4.5 years. Show and explain your work.
asked by Ham 
microsoft 2013
19. Which of the following identifies the patterns used for each data series in a chart? A. Data point B. Data series C. The horizontal and vertical axes D. Legend
asked by Lisa 
Math
If 2ab + 5cd = 5 and abcd = 1, what is the value of 4a^2b^2+ 25 c^2d^2
asked by Noor 
Microeconomics
Assume that you are considering a 7night vacation to Fort Walton Beach, Florida, in March. You estimate the total cost of the trip to Fort Walton Beach at $1,250, including discounted airfare. However, a resort at Myrtle Beach, South Carolina, is offering
asked by Anonymous 
Microsoft word 201
9. Andrea needs to format the legend on her chart. She clicks on the chart to select it. Which of the following options appears only when a chart is selected? A. Insert B. Review C. Chart Tools D. Page Layout
asked by Lisa 
micosoft 2013
20. Which of the following processes should Angel use to merge cells A1:D4 to create a title? A. Highlight cells A1:D4, click on the Home tab, and click on the Wrap text icon in the Alignment group. B. Highlight cells A1:D4, rightclick and select Format
asked by Lisa 
chemistry
It took 20 seconds for a certain volume of oxygen to effuse through an orifice(small opening) at 298K. How long will it take the same volume of each of the following gases to effuse through the same orifice at the same temperature?. The gases are hydrogen,
asked by JOHN 
algebra
Thabos brother is 5 years younger than him.Their combined age is half their sisters age.Their sister is 12 years.How old is Thabo?
asked by pearl 
Physics
A radar station locates a sinking ship at range 16.0 km and bearing 136° clockwise from north. From the same station, a rescue plane is at horizontal range 19.6 km, 155° clockwise from north, with elevation 2.35 km.
asked by C 
Math
Name the 2digit number: The ones digit is three times the tens digit. Both digits are even.
asked by Zoe 
Physics
A point charge of 4 μC is placed at the origin. There is an external uniform field E = 400 i N/C. What is the net force on a 5 μC charge placed at (5 m, 3 m) ??? i + ??? j N
asked by Amber 
Chem
A carless chemistry student pours 200 grams of methanol, a flammable substance into the sink. Another careless chemistry student causes the bad situation to get even worse by dropping a lit match into the sink. The metanol burns completely with 300 grams
asked by Sara 
life science
investigation to determine whether expired air contains carbondioxide
asked by charles 
Chemistry
when heated, sulfuric acid will decompose into sulfur trioxide and water. Write a chemical equation, using words, to represent this chemical reaction. Identify reactants and products. (I'm having trouble identifying the reactants and products & writing the
asked by Sam 
science
a rocket is launched vertically at a height of 4km above the earths surface calculate the maximum height above the ground level
asked by agnes 
Algebra
If 2ab + 5cd = 5 and abcd = 1, what is the value of 4a^2b^2+ 25 c^2d^2
asked by Noor 
organic chemistry
Which has higher boiling point? A. Alkenes B. Alkadienes I think my answer would be A because it contains 1 double bond (1 pi bond)
asked by fay 
Math
Express 81p^2  49q^2 as products of two terms.
asked by Noor 
Islamis study
What is the significance of month of zill  hajj
asked by Noor 
English
I have to write about an artifact. Could a place be an artifact? Say I went someone and really enjoyed it for a certain reason (Ex: Going to a museum that I really liked.). Could I write about that? or is it not an artifact
asked by anonymous 
Chemistry
For the combustion of 100. gm of methane, how much heat would be generated?
asked by John 
Thermochemistry
For the combustion of 100. gm of methane, how much heat would be generated?
asked by Gary 
Science
If one third of 100 g of 27% aqueous sugar solution is taken in a beaker and 10 g of sugar is added to it, the concentration of the resulting solution will be
asked by Sannat 
math
the elevation of a tower from a point on the ground is 30 at a point on the horizontal line passing through the foot of the tower and 100 metres nearer it, the angle of elevation is 60 find height of the tower and the distance of the first point from the
asked by sonia 
physics
Estimate the speed in mph with which water comes out of a garden hose using your past observations of water coming out of garden hoses and your knowledge of projectile motion. (Take the inclination angle to be 45°, the initial height to be 1.0 m, and the
asked by dan 
microsoft 2013
10. David has a small business and is working on an Excel worksheet to help manage his inventory. David realizes cell E14 has the wrong output. To check the problem, David should first select cell E14 and look at the _______ to check the formula. A. range
asked by Lisa 
Statistics
In country A, the Index of Qualitative Variation (IQV)for an exhuastive survey of religious beliefs is 0.25. For country B, the IQV is 0.75. What can you infer about the different dispersion of religions between the two countries?
asked by Zam 
sita college
It took 20 seconds for a certain volume of oxygen to effuse through an orifice(small opening) at 298K. How long will it take the same volume of each of the following gases to effuse through the same orifice at the same temperature?. The gases are hydrogen,
asked by aweda 
Math
PLEASE HELP What is 6x3 / 9  1? I got 6 x 3 = 18 / 9  1 = 1 But for the answers it only 2 3 5 6 no 1 :((
asked by Lee 
Algebra
Find the values of a^2 + b^2 and a^4 + b^4 when a + b =5 and Ab = 4
asked by Noor 
Math
The distance between two numbers on the number line is 15. If one of the numbers is 5, what are the two possibilities for the other number?
asked by carlos 
Physics
Can you help me understand the graphic relationship between d vs t, v vs t, and a vs t?
asked by Krista 
history
In your opinion, what would have happened had the Founding Fathers chosen to simply modify the Articles of Confederation?
asked by Sammy 
al
radical 72 x^9 simplify show all work
asked by algebra 1 
chemistry
a block of metal has a width of 3.2cm, a length of 17.1cm, and a height of 3.7cm. its mass is 1.3kg. calculate the density
asked by keith 
English
1. Time is up. 2. Time is over. 3. Time is finished. 4. Time is off. =============== At the end of a talk show, what can an MC say?
asked by rfvv 
Calculus using the first derivative
Y=e^x differentiate using the first principle
asked by Edward 
math
A man facing north turns to face southwest .Through how many degree did he turn if a. he turned clockwise b. he turned anticlockwise
asked by althea alli 
physics
An object traveling 339 m/s strikes a 2nd object and comes to rest 24 cm inside of the 2nd object (which does not move). What is the 1st object's average deceleration (m/s/s)?
asked by Olga 
Algebra
If m1 and m2 are the slopes of two lines, where m1 . m2 =1, the lines are? the same, or parallel or perpendicular?
asked by Carole 
Physics
if there was a cyclone, would the speed of the wind make the waves go faster and make constructive interference occur?
asked by aurora 
govt high shool
AlgebraWhat is compliment of 72degree 40 min
asked by VIKASH1 
Operating System
How would you rank the principle of concurrency? Explain the design issues for which the concept of concurrency is relevant.
asked by Monique 
Caculus
Find the limit of f(x)=1/(x1) as approaches 1 think inifnite limit
asked by Collins 
Math
Find the values of a^2 + b^2 and a^4 + b^4 when a + b =5 and Ab = 4
asked by Noor 
Geography
"As stormwater travels faster in creeks, it would enter the ocean at a faster rate, therefore, having the potential to strip away sand and erode the shoreline" Is this correct?
asked by Isabelle 
Islamic study
how is the islamic calendar different from the one we use
asked by Noor 
life orientation
what are four environmental issues that cause ill health in our community
asked by makhosi 
Pre cal
Simply the equation: 2x^4y^0z^2/(yz^2)^2 x 2zx^2y^4 Can you help? I got the denominator to be y^6 x 2z^5 x x^2 When I solved it, I got x^2y^6/z^3
asked by bob